31258420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 70741440

約数和(自身を除く): 39483020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 1913, 3268, 3826, 4085, 7652, 8170, 9565, 16340, 19130, 36347, 38260, 72694, 82259, 145388, 164518, 181735, 329036, 363470, 411295, 726940, 822590, 1562921, 1645180, 3125842, 6251684, 7814605, 15629210, 31258420]

約数ペア:

[(1, 31258420), (2, 15629210), (4, 7814605), (5, 6251684), (10, 3125842), (19, 1645180), (20, 1562921), (38, 822590), (43, 726940), (76, 411295), (86, 363470), (95, 329036), (172, 181735), (190, 164518), (215, 145388), (380, 82259), (430, 72694), (817, 38260), (860, 36347), (1634, 19130), (1913, 16340), (3268, 9565), (3826, 8170), (4085, 7652)]